Surface tension and stability of foams based of keratin hydrolyzate

  • Zhanar Ospanova al-Farabi Kazakh National University http://orcid.org/0000-0003-3920-8100
  • Kuanyshbek Musabekov al-Farabi Kazakh National University
  • Saule Aidarova K.I. Satpaev Kazakh National Technical University, Almaty
DOI: https://doi.org/10.15328/cb579
Keywords: surface tension, keratin, wool, hydrolysis, foam, foaming agent, stability

Abstract

The protein obtained in the alkali hydrolysis consist of amino acid residues that are natural macromolecular surfactants and they can may be used as effective foam stabilizers. The features of dynamic surface tension and stability of foams on based of aqueous solutions of keratin hydrolyzate in a concentration range of 1-10% were studied. The relaxation time – of the adsorption layers of keratin hydrolyzate is equaled to 10-12 min. The parameters of adsorption at the liquid – gas interface were defined. The maximum surface activity, foaming and foam stability corresponds to a neutral pH close to isoelectric state of the protein. Increase the foam stability at pH ~ 7 proceeds due to the conformational changes of macro-molecules of the protein at the interface liquid – gas, forming particles of colloidal size, clogging channels Plateau-Gibbs and preventing expiration of the liquid film between.

References

1 Shintemirov KS et al. (2002) Foam former for production of foam concretes [Penoobrazovatel dlya proizvodctva penobetonov]. Preliminary Patent of the Republic of Kazakhstan No. 9111. MPKb C04B38/10 [Predvaritelnyi patent Respubliki Kazakhstan Nomer 9111. МПК6 C04B38/10]. (In Russian)

2 Shintemirov KS (2000) Keratin foam former for production of foam concretes [Keratinovyi penoobrazovatel dlya proizvodctva penobetonov]. Preliminary Patent of the Republic of Kazakhstan No.5921. MPKb C04B38/10 [Predvaritelnyi patent Respubliki Kazakhstan Nomer 5921. МПК6 C04B38/10]. (In Russian)

3 Cardamone M, Nuñez A, Garcia RA, Aldema-Ramos M (2009) Research Letters in Materials Science 2009:1-5. http://dx.doi.org/10.1155/2009/147175

4 Antipova LV, Shamkhanov ChU, Osminin OS (2004) Meat Industry [Myasnaya Industria] 3:44-47. (In Russian)

5 Оspanova ZhB, Musabekov KB, Tokhtarbai Zh, Isakhov M, Koblanova ON (2012) Chemical Bulletin of Kazakh National University 3:206-209. (In Russian). http://dx.doi.org/10.15328/chemb_2012_3206-209

6 Musabekov KB, Ospanova ZhB, Abeu N (2014) All materials. Encyclopedic Handbook [Vse materialy. Enzyklopedicheskyi spravochnyk] 6:12-15. (In Russian)

7 Holmberg K, Jonsson B, Kronberg B, Lindman B (2002) Surfactants and Polymers in Aqueous Solution. John Wiley & Sons, Chichester, UK. ISBN 0-471-49883-1

8 Ramе E (1997) J Colloid and Interface Sci 1:245-251. http://dx.doi.org/10.1006/jcis.1996.4589

9 Trapeznikov AA, Vins VG, Shirokova GYu (1981) Colloid J+ 2:323-329. 10 Katoh K, Tanabe T, Yamauchi K (2004) Biomaterials 25:4255-4262. http://dx.doi.org/10.1016/j.biomaterials.2003.09.021

Published
2015-03-31
How to Cite
Ospanova, Z., Musabekov, K., & Aidarova, S. (2015). Surface tension and stability of foams based of keratin hydrolyzate. Chemical Bulletin of Kazakh National University, 77(1), 88-93. https://doi.org/https://doi.org/10.15328/cb579
Issue
Vol 77 No 1 (2015): Chemical Bulletin of Kazakh National University
Section
Colloid and Nano Chemistry
Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License (CC BY-NC-ND 4.0) that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.